Overview; Proper Use; Improper Use - G&G JJ-BC Series Operating Instruction

2 Overview

The laboratory analytical balance JJ-BC is designed to meet the needs of laboratories, industry and
commercial users and it offers very wide range of functions: weighing, parts counting or density
determination.
It is equipped with a very precise sensor, using the electromagnetic force compensation sensor. This
measurement technology is much more precise than the classic stain gauge load cell.
The Series JJ-BC is available in various models with a measuring range between 0,0001g and 0,01g, with
capacities of up to 3,2kg.
Models with 0,001g readout or finer come with a big wind shield.
Electromagnetic force compensation technology.
 High precision, sensitivity and rapid response time.
 High quality materials and an optimized power supply.
 High reliability and long service life.
 A robust base made of powder coated aluminum cast.
 An easy-cleaning, durable and stable metal shell with glass wind protection.
 A removable stainless steel pan can be cleaned easily.
 A Level Indicator, four adjustable feet.
 External calibration, zeroing searches, parts counting function, tare function, density determination
 7 Weighing units (g, ct, ozt, oz, GN, dwt, lb).
 Large LCD display with backlight, digit height 15 mm.
 An integrated RS-232-interface enables you to automatically send the weighing data to PC
 Powered by the external mains adapter.

2.1 Proper Use

The balance you purchased is intended to determine the weighing value of material to be weighed. It is
intended to be used as a "non-automatic" balance, i.e. the material to be weighed is manually and
carefully placed in the center of the weighing plate. As soon as a stable weighing value is reached the
weighing value can be read.

2.2 Improper Use

 Do not use the balance for dynamic weighing. In the event that small quantities are removed or added
to the material to be weighed, incorrect weighing results can be displayed due to the "stability
compensation" in the balance. (Example: Slowly draining fluids from a container on the balance.)
 Do not leave permanent load on the weighing plate. This may damage the measuring system.
 Impacts and overloading exceeding the stated maximum load (max) of the balance, minus a possibly
existing tare load, must be strictly avoided. Balance may be damage by this.
 Never operate the balance in explosive environment. The balance is not explosion protected.
 The structure of the balance may not be modified. This may lead to incorrect weighing results, safety-
related faults and destruction of the balance.
 The balance may only be used according to the described conditions. Other areas of use must be
released by G&G in document.
G&G GmbH | Overview 6